Library / GUIDE FOR THE ESTABLISHMENT AND OPERATIONS OF DOWNSTREAM GAS FACILITIES IN NIGERIA (LPG, CNG, LNG) ISSUED BY
GUIDE FOR THE ESTABLISHMENT AND OPERATIONS OF DOWNSTREAM GAS FACILITIES IN NIGERIA (LPG, CNG, LNG) ISSUED BY
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Applicable to all Oil & Gas Operators GUIDELINES FOR THE ESTABLISHMENT AND OPERATIONS OF A GAS RETICULATION FACILITY IN NIGERIA Code: DPR Guide 0028 - 2020 Revision Date: 1st September 2020 This is a property of the Department of Petroleum Resources. All rights reserved 16 systems. b. Where damage to pipe from external forces is likely to occur, then a minimum cover of 460mm shall be provided. c. Where a minimum cover of 300mm cannot be provided, the pipe shall be installed in a conduit or bridged (shielded). 3.5 Master Switches In addition to the site main isolator controlling the electrical installation, a separate isolation switch should be provided to isolate the supply to the LPG installation. This should be so positioned as to be readily visible and within easy reach for quick operation in cases of emergency. 3.6 Pumps, Compressors and Fittings Pumps, other than submersible types, should be adequately secured to a concrete foundation or bolted to a structural steel support. Where the drive unit is not integral with the pump, attention should be given to ensure correct alignment, and all moving parts should be suitably guarded. 3.7 Manifolds Manifolds are to be securely fixed to avoid strain on connections under normal working conditions. On a housing estate forecourt, such connection valves should be immediately downstream of the shear valve or excess flow valve protecting the meter. 3.8 Pressure And Flow Control The piping manifold used for the supply of LPG to compound or building site shall be designed and installed to ensure uninterrupted and safe LPG supply in active and standby operations mode. LPG flow shall be delivered through pigtails and controlled through three-stage Pressure Regulation System (PRS) to residential units.
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